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[HPR16] Cooperative Uplink OFDMA-MIMO Resource Allocation with Multiplexing Relays
Conférence Internationale avec comité de lecture : 2016 IEEE Wireless Communications and Networking Conference WS 3 : IEEE WCNC'2016 Workshop on Green and Sustainable 5G Wireless Networks (GRASNET) , April 2016, pp.1-5, Doha, Qatar,
motcle:
Résumé:
We investigate in this paper the resource allocation
problem in an uplink cooperative MIMO OFDMA multiuser
system. This system may be used in 5G in the context of green
communications since we aim to save energy by reducing the
system transmit power. We focus on multiplexing Decode and
Forward (DF) relays that have their own data to transmit in
addition to data to relay. Aiming to minimize the system transmit
power with a required target data rate per user, the resource
allocation problem is formulated as an optimization problem.
The feature to optimize are relay selection, power allocation and
resource block (RB) allocation. We propose a novel resolution
algorithm based on dual method and Lagrangian decomposition.
Moreover, at each user, Equal Power Allocation (EPA) and
beamforming are studied and compared to allocate power to
antennas. Simulation results show that the cooperative proposed
algorithm leads to an important improvement comparing to a
non-cooperative system.
BibTeX
| @inproceedings { | |||
| HPR16, | |||
| title | = | "{Cooperative Uplink OFDMA-MIMO Resource Allocation with Multiplexing Relays}", | |
| author | = | " S. Hamda and M. Pischella and D. Roviras and R. Bouallegue ", | |
| booktitle | = | "{2016 IEEE Wireless Communications and Networking Conference WS 3 : IEEE WCNC'2016 Workshop on Green and Sustainable 5G Wireless Networks (GRASNET) }", | |
| year | = | 2016, | |
| month | = | "April", | |
| pages | = | "1-5", | |
| address | = | "Doha, Qatar", | |
| } | |||
